There's a chance it may be a Civ 6 expansion pack since Civ 6 has been out a few years and there's only been one when there are typically 2-3 with a year break between each expansion (see: Civ 5's expansions). Considering R&F came out Feb this year a pushback for expack 2 could fit the bill.

There's a chance it may be a Civ 6 expansion pack since Civ 6 has been out a few years and there's only been one when there are typically 2-3 with a year break between each expansion (see: Civ 5's expansions). Considering R&F came out Feb this year a pushback for expack 2 could fit the bill.

If they're not ready to announce it to the public, then I'm not sure if the game's popularity matters much. Also, R&F is on mixed reviews on Steam right now, so perhaps the priority was shifted from a early 2019 release to early 2020 to fix the issues with it?